Module card structure

ABSTRACT

A module card structure includes a structure, a first chip, a second chip, an adhered layer, and a compound layer. The substrate has an upper surface on which a plurality of golden finger are formed, and a lower surface. The first chip is mounted on the upper surface of the substrate and is electrically connected to the golden finger by wires. The second chip is adhered to the upper surface of the substrate by adhered layer, which includes glue and filled elements, and is electrically connected to the golden finger by wires. The compound layer is encapsulated on the first chip and second chip for encapsulating the first chip and second chip.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates to a module card image structure, and in particular to a module card structure is capable of manufacturing to be light, thin, and small.

2. Description of the Related Art

Referring to FIG. 1, it is a conventional module card structure includes a substrate 10, a first chip 18, a second chip 22, and a compound layer 26.

The substrate 10 has an upper surface 12 on which plurality of golden fingers16 are formed, and a lower surface 14. The first chip 18 is mounted on the upper substrate 12 of the substrate 10, and is electrically connected to the golden fingers 16 of the upper surface 12 of the substrate 10 by wires 22. Please refer to FIG. 2, the second chip 22 is mounted on the upper surface 12 of the substrate 10 and is electrically connected to the golden fingers 16 of the upper surface 12 of the substrate 10 by wires 24. The compound layer 26 is encapsulated on the first chip 18 and second chip 22.

Accordingly, between the first chip 18 and second chip has a large gas for bonding the wires, so as to the structure has a large scale. Therefore, the size of the substrate 10 has to be large so as to increase the space for wire bonding.

SUMMARY OF THE INVENTION

An objective of the invention is to provide a module card structure, that is ease to be package and capable of reducing the volume of the structure and the manufacturing cost.

Another objective of the invention is to provide a module card structure capable of packaging chip having different sizes without changing the package volume. The objective of the producing structures having the same volume can be achieved.

To achieve the above-mentioned object, the invention provides a module card structure includes a structure, a first chip, a second chip, an adhered layer, and a compound layer. The substrate has an upper surface on which a plurality of golden finger are formed, and a lower surface. The first chip is mounted on the upper surface of the substrate and is electrically connected to the golden finger by wires. The second chip is adhered to the upper surface of the substrate by adhered layer, which includes glue and filled elements, and is electrically connected to the golden finger by wires. The compound layer is encapsulated on the first chip and second chip for encapsulating the first chip and second chip.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic illustration showing a conventional module card structure.

FIG. 2 is a top view of the FIG. 1.

FIG. 3 is a schematic illustration showing a module card structure of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Please refer to FIG. 3, a module card structure of the present invention includes a substrate 40, a first chip 42, a second chip 44, an adhered layer 46, and a compound layer 48.

The substrate 40 has an upper surface 50 on which a plurality of golden finger 54 are formed, and a lower surface 52.

The first chip 42 is mounted on the upper surface 50 of the substrate 40 and is electrically connected to the golden finger 54 by wires 56.

Please refer to FIG. 4, the second chip 44 is adhered to the upper surface 50 of the substrate 40 by adhered layer 46, which includes glue 59 and filled elements 58, and is electrically connected to the golden finger 54 by wires 60. The filled elements 58 are metal balls.

The compound layer 48 is encapsulated on the first chip 42 and second chip 44 for encapsulating the first chip 42 and second chip 44.

Thus, the second chip 44 is mounted on the filled elements 58, so that the wires 56 are bonded easily, and it is possible to select the substrate 40 having a smaller size to package the first chip 42 and second chip 44 having the same original size. Thus, it is possible to obtain a module card structure having smaller volume.

While the invention has been described by the way of an example and in terms of a preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiment. On the contrary, it is intended to cover various modifications. Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications. 

1. A module card structure, the structure comprising: a substrate having an upper surface on which a plurality of golden finger are formed, and a lower surface a first chip mounted on the upper surface of the substrate and electrically connected to the golden finger by wires a second chip adhered to the upper surface of the substrate by adhered layer, which includes glue and filled elements, and electrically connected to the golden finger by wires; and a compound layer encapsulated on the first chip and second chip for encapsulating the first chip and second chip.
 2. The module card structure according to claim 1, wherein the filled elements are ball shape.
 3. The module card structure according to claim 2, wherein the compound layer is encapsulated on the first chip and second chip simultaneously. 